42550402 has 8 divisors (see below), whose sum is σ = 64285200. Its totient is φ = 21122004.

The previous prime is 42550399. The next prime is 42550421. The reversal of 42550402 is 20405524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76252 + ... + 76807.

It is an arithmetic number, because the mean of its divisors is an integer number (8035650).

Almost surely, 2^42550402 is an apocalyptic number.

42550402 is a deficient number, since it is larger than the sum of its proper divisors (21734798).

42550402 is a wasteful number, since it uses less digits than its factorization.

42550402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153200.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 42550402 is about 6523.0669167195. The cubic root of 42550402 is about 349.1145017191.

Adding to 42550402 its reverse (20405524), we get a palindrome (62955926).

The spelling of 42550402 in words is "forty-two million, five hundred fifty thousand, four hundred two".